Question

A cruise company would like to estimate the average beer consumption to plan its beer inventory levels on future​ seven-day cruises.​ (The ship certainly​ doesn't want to run out of beer in the middle of the​ ocean!) The average beer consumption over 24 randomly selected​ seven-day cruises was 81,689 bottles with a sample standard deviation of 4,574 bottles.

a. Construct a 99​% confidence interval to estimate the average beer consumption per cruise. The 99​% confidence interval to estimate the average beer consumption per cruise is from a lower limit of nothing bottles to an upper limit of _______bottles.

Answer 1

Given X81689 n-24, =0.01 84574 t-disthibution Since Use n<30, we will to.o0s, 23 2.807 99.9% Confidence intehVel foh mean is Ktta,m 81689+ 2.807x 4574 N24 81689+ 12839.22 4.90 81689+ 2620-80 (79068.2 84 309-8)